[Solved] Variable cost per unit: A) increases in direct proportion to changes in the cost driver. B) decreases in direct proportion to changes in the cost driver. C) remains unchanged as the level of the cost driver changes. D) increases, but not in direct proportion to changes in the cost driver. Saturated Fat: A type of dietary fat found in animal products and some plant oils that is solid at room temperature and associated with increased cholesterol levels. Dietary Supplements: Products taken by mouth that contain a dietary ingredient intended to supplement the diet, such as vitamins, minerals, herbs, or amino acids. Marital Sexuality: The expression, experience, and dynamics of sexual relationships within the context of marriage. Erotic Behavior: Actions or practices that evoke or express sexual desire and excitement.